Study on Variability in Field Experiments of Cotton Crop (Bhal and Coastal Zone)

The data on C.V. % for cotton crop yield along with other details of 224 field experiments conducted during 1989-90 to 2014-15 at Agriculture research station, Anand Agricultural University, Arnej and Dhandhuka center were collected and analyzed. The frequency distribution tables were prepared for various experimental factors. The upper fiducial limits (the yardstick) of C.V. % at 95% confidence based on non central‘t' distribution were worked out for accepting the results of cotton crop experiments which emerged as 21%